Chevrolet 1977 light duty truck, Service Manual

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COMPLETE VEHICLE MAINTENANCE SCHEDULE I
Series 10 w ith V -8 Engine and Light D u ty Emission System
T h is M a in t e n a n c e S c h e d u le is a p p lic a b le to a ll C h e v r o le t e n g in e s w h ic h d o no t c o n ta in th e le tte r “ U ” in th e e n g in e
id e n tific a tio n c o d e (w h ic h b e g in s w ith the n u m e ra l
“ 7 ” ) s h o w n in th e u p p e r left c o r n e r o f th e u n d e r h o o d " V e h ic le
E m is s io n C o n tro l In fo r m a t io n " la b e l. (E x a m p le : 712Y2).
When To Perform Services Item
Months or Miles, Whichever Occurs First)
No.
Services
S E C TIO N A —Lubrication and G eneral M aintenance
Every 12 Months or 7,500 Miles
A-1 Chassis Lubrication
A -2 •*F luid Levels Check
A -3 ‘ Engine Oil Change
See Explanation
A -4 *Oil Filter Change
A -5 Tire Rotation
A -6 Rear Axle Lube Change
Every 12 Months
A -7 Air Conditioning Check
Every 12 Months or 15,000 Miles A -8 *Cooling System Check
Every 30,000 Miles A -9 W heel Bearing Repack
A -10 Manual Steering G ear Check
A -1 1
Clutch Cross Shaft Lubrication
Every 60,000 Miles A -1 2 *Auto. Trans. Fluid & Filter Change
S E C TIO N B —Safety M aintenance
Every 12 Months or 7,500 Miles B-1 Owner Safety Checks
B-2 Tire, W heel and Disc Brake Check
B -3 *Exhaust System Check
B-4 Suspension and Steering Check
B-5 Brake and Power Steering Check
Every 12 Months or 15,000 Miles B-6
*Drive Belt C heck
B -7 Drum Brake and Parking Brake Check
B-8
Throttle Linkage C heck
B-9 Underbody Flush & Check
S E C TIO N C —Emission Control M aintenance
At First 6 Months or 7,500 M ile s -
Then at 18 M onth/22,500 Mile
Intervals as Indicated in Log
C-1 Thermo. Controlled Air C leaner Check
C -2 Carburetor Choke Check
C -3 Engine Idle Speed Adjustment
C -4
EFE System Check
C -5 Carburetor Mounting Torque
C -6 Vacuum Advance System, Hoses C heck
Every 12 Months or 15,000 Miles C -7
Fuel Filter R eplacem ent
C -8
PCV System Check
— PCV Valve & Filter Replacem ent
Every 22,500 Miles
C -9
Spark Plug Wires C heck
C -1 0
Idle S p eed -U p Solenoid C heck
C -1 1 Spark Plug Replacem ent
C -1 2
Engine Timing Adjustment & Dist. C heck
C -1 3 Carburetor Vacuum Break Adjustment (1)
Every 24 Months or 30,000 Miles C -1 4
ECS System C heck & Filter Replacem ent
C -1 5 Fuel Cap, T an k and Lines C heck
Every 30,000 Miles
C -1 6
Air Cleaner Element Replacem ent
•Also A Safety Service *Also An Emission Control Service (1) Applies to 305 C ID engine only
Your 1977 Chevrolet has been certified to m eet emission standards at either high or low altitude as
designated on the underhood Vehicle Emission Control Information Label. Vehicle driveability will be
optimum at the altitude designated on the Label but will be satisfactory at all altitudes.
T h e exhaust emission control systems used on 1977 model GM vehicles are not designed for conversion
to allow the vehicles to meet emission standards when operated at other than the altitude designated
on the Label. However, for some GM vehicles, conversion to meet emission standards at other th^p
the designated altitude is possible and is permitted by government regulations. Information regarding
conversion of your vehicle, if permitted, can be obtained from: (Customer Services Manager, Chevrolet
Central Office —Detroit, Michigan 48202). Include your Vehicle Identification Number in your request.